I'm new to the forum and a new HK owner. I own a P30SKS. I have seen in multiple areas where guys talk about changing from one version to another. I have never heard of anything like that before. Why do guys make changes like this? I bought what I wanted so I didn't have to change things. When these changes are made does that void the warranty? I think it is cool that it can be done just not something I considered. Maybe if I couldn't get the version I want maybe. The more I think about it. Because I can is also a acceptable answer. Just trying to figure it out a little never know I may pick up something from the forum that makes me want to switch.